triphylite / ˈtrɪf əˌlaɪt /

📖毕业后词汇三叶石三叶石类三叶形石三叶石粉

triphylite 的定义

n. 名词 noun
  1. a mineral, a rare phosphate of lithium, iron, and manganese, usually occurring in masses of a bluish or greenish color.